Bleeding/Spotting 6+3

Looking for thoughts/similar experiences. Thank you for reading!

Had an u/s on Friday, was measuring at 6+0 or 6+1, saw a gestational sac, a yolk sac and a heartbeat.

Over the weekend, I had some brown discharge when I peed, and thought it was probably from the u/s.

This morning during a BM, had some pinkish red bleeding (vaginal) in the toilet and when I wiped. Called the doc and they said might be increased blood flow and to call back if I soak a pad or have cramping.

Went several hours with nothing and now am having some light brown come out, mostly when I go to the bathroom. Still no cramping.

Am I headed for an MC?